EP1145379A1 - Antenna provided with an assembly of filtering materials - Google Patents
Antenna provided with an assembly of filtering materialsInfo
- Publication number
- EP1145379A1 EP1145379A1 EP00981432A EP00981432A EP1145379A1 EP 1145379 A1 EP1145379 A1 EP 1145379A1 EP 00981432 A EP00981432 A EP 00981432A EP 00981432 A EP00981432 A EP 00981432A EP 1145379 A1 EP1145379 A1 EP 1145379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- permeability
- permittivity
- conductivity
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 68
- 238000001914 filtration Methods 0.000 title claims abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 37
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 230000001131 transforming effect Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 9
- 230000010287 polarization Effects 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
Definitions
- Antenna provided with an assembly of filtering materials.
- the present invention relates to a transmitting or receiving antenna reaching significant directivity levels at frequencies of the order of microwaves.
- Antennas comprising at least one probe capable of transforming electrical energy into electromagnetic energy and vice versa.
- the antennas conventionally used are in particular antennas with parabolic reflector, lens antennas and horn-type antennas.
- Parabolic reflector antennas have a reflector plane of parabolic shape at the focus of which is a probe. This results in a space requirement linked to the focal distance of the parabolic reflector.
- the lens antennas have a lens at the focus of which is a probe. In addition to the bulk associated with the focal distance, such an antenna also has a high weight, due to the weight of the lens, which weight can be detrimental for certain applications.
- the horn type antennas are bulky and heavy to achieve high directivity levels.
- the invention aims to remedy the drawbacks of conventional antennas by creating a less bulky and less heavy antenna, capable of transmitting or receiving an electromagnetic wave with high levels of directivity.
- the subject of the invention is therefore an antenna comprising at least one probe capable of transforming electrical energy into electromagnetic energy and vice versa, characterized in that it also comprises an assembly of elements made of at least two materials differentiating by their permittivity and / or their permeability and / or their conductivity within which said probe is arranged, the arrangement of the elements in said assembly ensuring the radiation and a spatial and frequency filtering of the electromagnetic waves produced or received by said probe, which filtering authorizes in particular one or more antenna operating frequencies within a non-passing frequency band.
- Said antenna thus makes it possible to obtain a reduced bulk and weight by the use of a simplified feeding system and a assembly, of small thickness, of material elements differentiating by their permittivity and / or their permeability and or their conductivity.
- the antenna according to the invention may also include one or more of the following characteristics: - Said assembly of elements has a periodicity with at least one dimension in its structure and at least one defect which generates at least one cavity within it.
- Said assembly of elements comprises a first material of given permittivity and permeability and conductivity forming a cavity within a structure of two other materials differentiated by their permittivity and / or their permeability and / or their conductivity, said structure having a triple periodicity according to three distinct spatial directions of said two other materials.
- - Said assembly of elements comprises a first material of given permittivity and permeability and conductivity forming a cavity within a structure of two other materials differentiated by their permittivity and / or their permeability and / or their conductivity, said structure having a double periodicity in two distinct spatial directions of said two other materials.
- - Said assembly of elements consists of flat layers of materials differentiating by their permittivity and / or by their permeability and / or their conductivity.
- said assembly of elements comprises a first planar layer of material with given permittivity and permeability and conductivity, within which the probe is arranged, said first layer being in contact with at least one succession of planar layers of material differentiated by their permittivity and / or their permeability and / or their conductivity, arranged in a one-dimensional periodic pattern.
- - Figure 1 shows an antenna according to the invention in the general case
- - Figure 2 shows an antenna according to the invention comprising a plane reflecting electromagnetic waves
- FIG. 3 shows schematically in perspective an example of structure of planar layers of materials differentiated by their permittivity and / or by their permeability and / or their conductivity arranged in a periodic pattern to one dimension;
- FIG. 4 shows schematically in perspective an example of structure having a double periodicity in two distinct spatial directions of the materials constituting it
- FIG. 5 shows schematically in perspective an example of structure having a triple periodicity according to three distinct spatial directions of the materials constituting it;
- FIG. 6 shows schematically in perspective an antenna according to a particular embodiment of the invention
- FIG. 7 shows a curve giving the transmission coefficient as a function of the frequency of the electromagnetic wave emitted or received by an antenna according to the invention
- - Figure 8 shows a directivity diagram of the antenna according to the embodiment presented in Figure 6;
- FIG. 1 shows schematically in perspective an antenna according to another embodiment.
- An antenna according to the invention shown in FIG. 1 comprises:
- a probe 10 capable of transforming an electric wave into an electromagnetic wave and vice versa.
- Antennas such as plate antennas, dipoles, circularly polarized antennas, slots, coplanar wire-plate antennas may for example be suitable as probe 10 in an antenna according to the present invention.
- An assembly 20 of elements made of at least two materials, differentiated by their permittivity and / or by their permeability and / or by their conductivity within which the probe 10 is disposed.
- materials with low losses such as for example plastic, ceramic, ferrite, metal, etc.
- the probe 10 can be very simple to design from the moment it fulfills the type of polarization (linear or circular), the ellipticity rate and the electrical characteristics desired by the manufacturer, this probe 10 must nevertheless be small compared to the overall dimensions of the antenna.
- assembly 20 makes it possible to design an antenna authorizing one or more frequency modes of propagation within a non-pass band, in one or more authorized spatial directions d, the spatial filtering being itself dependent the frequency and nature of the materials involved in the assembly 20.
- this assembly 20 comprising a structure 22 designed on the principle of photonic band gap materials within which there is one or more cavity (s) 21 is to have one or more frequency mode (s) ) propagation very isolated from its nearest neighbors.
- a structure designed on the principle of photonic band gap materials is a structure of elements differentiated by their permittivity and / or by their permeability and / or by their conductivity, which structure has a periodicity with at least one dimension.
- a cavity 21 placed within the assembly 20 gives it, by association with the photonic bandgap material 22, the behavior of a material called by those skilled in the art photonic bandgap material failing this. She may be :
- An antenna according to the invention shown in FIG. 2 may also include an electromagnetic reflective plane 30 placed in the middle of the assembly 20 and containing the probe 10, making it possible to reduce the dimensions of the antenna by half, particularly when the radiation is only useful in half a space.
- One advantage of an antenna according to the invention comprising an electromagnetic reflecting plane 30 is to increase the gain of the main lobe of the directivity diagram of said antenna.
- An antenna according to the invention shown in FIG. 3 comprises a structure 22 designed on the principle of photonic band gap materials having a one-dimensional periodicity, that is to say that said structure 22 comprises alternating flat layers of two materials 23 and 24, for example alumina and air respectively, distinguished by their permittivity and or by their permeability and or by their conductivity.
- An antenna according to the invention shown in FIG. 4 comprises a structure 22 designed on the principle of photonic band gap materials having a two-dimensional periodicity, that is to say that said structure 22 comprises bars, of cylindrical shape regularly arranged, of a first material 25, for example alumina, separated from each other by a second material 26, for example air, the second material being distinguished from the first by its permittivity and / or its permeability and / or its conductivity.
- the structure is made up of cylindrical bars arranged in a succession of superimposed layers.
- the bars extend parallel to each other and are placed with a regular pitch.
- the bars of successive layers are aligned with a regular pitch.
- the bars are metallic.
- An antenna according to the invention represented in FIG. 5 comprises a structure 22 designed on the principle of photonic band gap materials, having a three-dimensional periodicity, such that said structure 22 comprises an alternation of bars, for example of parallelepipedal shape arranged regularly, from a first material 27, for example alumina or metal, separated from each other by a second material 28, for example air, said second material being distinguished from the first material by its permittivity and / or its permeability and / or its conductivity.
- the structure 22 is composed of bars of substantially parallelepipedal shape arranged in a stack of superimposed layers. In each layer, the bars extend parallel to each other and are placed in a regular pitch and, the bars of two adjacent layers form a constant angle, for example an angle of 90 °.
- the layer bars separated by an intermediate layer are mutually parallel and aligned with a regular pitch.
- a preferred embodiment of an antenna according to the present invention comprises: - A plate probe 10a using a single supply wire 11;
- An advantage of this probe is to be very simple in design and to limit the metallic and dielectric losses of the antenna.
- a metal plate forming an electromagnetic plane reflector 30a;
- a planar layer forming a cavity 21a in contact with the planar reflector 30a, said cavity 21a being made of a material, preferably with low permittivity or permeability in order to limit the guidance of surface waves, which material can be air as shown in Figure 6 by way of example;
- - A structure 22, the materials 23a, 24a, 23b of which differ in their permittivity and / or their permeability and / or their conductivity are arranged in successive plane layers, according to a one-dimensional periodic pattern.
- the number of useful periods in the direction orthogonal to the plane of the antenna depends on the contrasts of permittivity and / or permeability and / or conductivity of the materials used. To reduce the number of periods, the index contrasts between the different materials must be increased.
- the materials used are alumina with a high permittivity index and air with a low permittivity index, which allows the structure 22 to have only three layers of materials.
- the structure 22 therefore consists of a first planar layer 23a of alumina in contact with a second planar layer 24a of air itself in contact with a third planar layer 23b of alumina.
- a) L thickness e 21a of the planar layer 21a made of a material with relative permittivity ⁇ r and relative permeability ⁇ r is given by the formula ⁇ e 21a ⁇ 0.5, - where ⁇ is the wavelength corresponding to the frequency of sjsr ⁇ r operation of the antenna, and where the symbol " ⁇ " means "equal or nearly equal".
- the thickness e of a plane layer of a dielectric or magnetic material with relative permittivity ⁇ r and relative permeability ⁇ r inside ⁇ the structure 22 is given by the formula e ⁇ 0.25 r ⁇ r
- the lateral dimensions of the structure 22, of the plate 30a and of the cavity 21a are chosen as a function of the desired gain of the antenna.
- the useful form for the antenna is part of a circle whose diameter ⁇ is related to the gain
- an antenna system according to the invention can have lateral dimensions of 4.3 ⁇ .
- the lateral shape of the antenna is then chosen to obtain a certain shape of the radiation of the antenna, according to a known method.
- d) Taking into account the lateral dimensions and the thicknesses of the different layers of materials used in the composition of the antenna as described in FIG. 6, said thicknesses and lateral dimensions being mentioned above, the general dimensions of the antenna are therefore: a thickness H of approximately ⁇ and a lateral dimension L of 4.3 ⁇ .
- a particular example of antenna according to the present invention as shown in Figure 6 will have a volume of the order of 3 x 13 x 13 cm 3 , whereas a conventional satellite dish system, operating at the same frequency of
- An antenna according to the invention as represented in FIG. 6 ensures the radiation and a spatial and frequency filtering of the electromagnetic waves produced or received by said antenna, as represented in FIG. 7. Said filtering authorizes in particular one or more frequency (s) of operation f of said antenna within a non-passable frequency band B.
- An antenna according to the invention as shown in FIG. 6 is designed to achieve a gain of 20 dB and has a radiation diagram represented in FIG. 8.
- the antenna according to the invention allows significant gains to be achieved in a given direction like conventional aperture antennas.
- the antenna has two operating modes: a transmitter mode and a receiver mode.
- an electric current led by the supply wire 11 reaches the level of the probe 10a which transforms it into an electromagnetic wave.
- This electromagnetic wave then passes through the assembly 20 of elements made of materials which are differentiated by their permittivity and / or by their permeability and / or their conductivity, the arrangement of which makes it possible to operate by construction spatial and frequency filtering on the wave. electromagnetic and thus conform the radiation pattern of the antenna system according to properties desired by the user.
- an electromagnetic wave arriving at the antenna is spatially and frequently filtered during its passage through the assembly 20 of elements made of materials differentiating by their permittivity and / or by their permeability and / or by their conductivity, before they can reach the probe 10a. Then, the electromagnetic wave filtered according to properties desired by construction of the antenna, is transformed into electric current pa the probe 10a and transmitted to the supply wire 11.
- the antenna probe is of a nature capable of generating a linear or circular polarization in the antenna, causing the latter to operate either in linear polarization or in circular polarization.
- the shape of the planar layers is arranged so as to obtain a desired radiation and gain diagram in accordance with the theory of radiating openings.
- the constituent elements of the structure are coaxial cylinders surrounding the probe, the arrangement thus having a radial periodicity, and the internal cylindrical element forms a cavity receiving said probe.
- the constituent elements of the structure 22 are coaxial cylinders made of materials with photonic band gap having a periodicity in two or three dimensions.
- At least one of the materials has variable dielectric and / or magnetic characteristics as a function of an external source such as an electric or magnetic field, so as to make it possible to produce tunable antennas.
- the assembly has multiple periodicity defects generated by a cavity or the juxtaposition of several cavities and making it possible to widen the bandwidth of the antenna and / or to create multiband antennas.
- the assembly of elements 20 has a periodicity with at least one dimension and at least one defect in one of the dimensions of this periodicity which generates at least one cavity in sound.
- breast the remaining elements arranged in a regular step in the other dimensions.
- the antenna shown in FIG. 9 includes:
- This structure in contact with the planar layer forming cavity 21a.
- This structure has a two-dimensional periodicity: it comprises bars 25, of cylindrical shape arranged in two layers 32 and 34 identical and superimposed. In each layer 32 and 34, the bars 25 extend parallel to each other and are placed with a regular pitch.
- the assembly 20 consisting of the cavity 21a and the structure 22 has a defect in its periodicity, in the dimension corresponding to the direction orthogonal to the plane reflector 30a and to the layers 32 and 34.
- the periodic arrangement of the bars 25 in each layer 32 and 34 is not affected by the presence of the cavity 21a.
- this antenna is also dependent on the operating frequency for which it was designed. For example, to operate at a frequency of 4.75 GHz, the lateral dimensions of the antenna are 258 mm, the thickness of the cavity 21a is 33.54 mm, the two layers 32 and 34 are spaced 22 , 36 mm and in each layer, the bars 25 have a diameter of 10.6 mm and their respective axes are spaced 22.36 mm.
- the bars can be made of dielectric, magnetic or metallic materials.
- the antenna represented in FIG. 9 has, like that represented in FIG. 6, a radiation diagram such as that represented in FIG. 8.
- the antenna comprises a multiplicity of probes of different natures.
- An antenna according to the invention can be used as:
- - high frequency antenna with high data rate due to its ability to operate at high frequencies thanks to multilayer deposition techniques;
- - antenna for on-board applications of aerospace or military type for example, because of its small size and because of these stealth characteristics due to the narrowness of its bandwidth;
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03027264A EP1416586B1 (en) | 1999-11-18 | 2000-11-17 | Antenna with an assembly of filtering material |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9914521 | 1999-11-18 | ||
FR9914521A FR2801428B1 (en) | 1999-11-18 | 1999-11-18 | ANTENNA PROVIDED WITH AN ASSEMBLY OF FILTER MATERIALS |
PCT/FR2000/003205 WO2001037373A1 (en) | 1999-11-18 | 2000-11-17 | Antenna provided with an assembly of filtering materials |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027264A Division EP1416586B1 (en) | 1999-11-18 | 2000-11-17 | Antenna with an assembly of filtering material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1145379A1 true EP1145379A1 (en) | 2001-10-17 |
EP1145379B1 EP1145379B1 (en) | 2007-08-29 |
Family
ID=9552269
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00981432A Expired - Lifetime EP1145379B1 (en) | 1999-11-18 | 2000-11-17 | Antenna provided with an assembly of filtering materials |
EP03027264A Expired - Lifetime EP1416586B1 (en) | 1999-11-18 | 2000-11-17 | Antenna with an assembly of filtering material |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027264A Expired - Lifetime EP1416586B1 (en) | 1999-11-18 | 2000-11-17 | Antenna with an assembly of filtering material |
Country Status (11)
Country | Link |
---|---|
US (1) | US6549172B1 (en) |
EP (2) | EP1145379B1 (en) |
JP (2) | JP4727884B2 (en) |
CN (2) | CN1203579C (en) |
AT (2) | ATE336091T1 (en) |
AU (1) | AU1868401A (en) |
CA (1) | CA2360432C (en) |
DE (2) | DE60030013T2 (en) |
ES (2) | ES2292491T3 (en) |
FR (1) | FR2801428B1 (en) |
WO (1) | WO2001037373A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8149180B2 (en) | 2007-03-29 | 2012-04-03 | Centre National De La Recherche Scientifique (C.N.R.S.) | Antenna with resonator having a filtering coating and system including such antenna |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2801428B1 (en) * | 1999-11-18 | 2004-10-15 | Centre Nat Rech Scient | ANTENNA PROVIDED WITH AN ASSEMBLY OF FILTER MATERIALS |
FR2830131B1 (en) * | 2001-09-24 | 2005-06-24 | Centre Nat Rech Scient | BROADBAND OR MULTI-BAND ANTENNA |
GB0126737D0 (en) * | 2001-11-07 | 2002-01-02 | Univ Glasgow | Filter |
FR2843238B1 (en) * | 2002-07-31 | 2006-07-21 | Cit Alcatel | MULTISOURCES ANTENNA, IN PARTICULAR FOR A REFLECTOR SYSTEM |
AU2003285444A1 (en) * | 2002-10-24 | 2004-05-25 | Centre National D'etudes Spatiales | Multiple-beam antenna with photonic bandgap material |
EP1554777B1 (en) * | 2002-10-24 | 2006-05-03 | Centre National de la Recherche Scientifique - CNRS | Multibeam antenna with photonic bandgap material |
FR2854738B1 (en) * | 2003-07-31 | 2005-08-26 | Centre Nat Rech Scient | AERIAL EQUIPMENT BIP MULTI-BAND FREQUENCY |
FR2854735B1 (en) * | 2003-07-31 | 2006-07-21 | Centre Nat Rech Scient | MULTI-BEAM BEEP MATERIAL ANTENNA |
US7411564B2 (en) | 2002-10-24 | 2008-08-12 | Centre National De La Recherche Scientifique (C.N.R.S.) | Frequency multiband antenna with photonic bandgap material |
FR2854737A1 (en) * | 2002-10-24 | 2004-11-12 | Centre Nat Rech Scient | Earth communications geostationary satellite multiple beam antenna having focal point radiation pattern and photonic band gap material outer surface with periodicity default providing narrow pass band |
FR2854734B1 (en) * | 2003-07-31 | 2006-07-21 | Centre Nat Rech Scient | ELECTROMAGNETIC WAVE EMISSION AND RECEPTION SYSTEM EQUIPPED WITH A BEAM MATERIAL MULTI-BEAM ANTENNA |
FR2870642B1 (en) * | 2004-05-19 | 2008-11-14 | Centre Nat Rech Scient Cnrse | BIP MATERIAL ANTENNA (PHOTONIC PROHIBITED BAND) WITH A SIDE WALL SURROUNDING A AXIS |
JP2007235460A (en) * | 2006-02-28 | 2007-09-13 | Mitsumi Electric Co Ltd | Antenna system |
JP4912716B2 (en) * | 2006-03-29 | 2012-04-11 | 新光電気工業株式会社 | Wiring substrate manufacturing method and semiconductor device manufacturing method |
FR2906410B1 (en) * | 2006-09-25 | 2008-12-05 | Cnes Epic | BIP MATERIAL ANTENNA (BAND PHOTONIC PROHIBITED), SYSTEM AND METHOD USING THE ANTENNA |
GB2456556A (en) * | 2008-01-21 | 2009-07-22 | Zarlink Semiconductor Ltd | Antenna arrangement including dielectric and ferrite materials. |
JP4623105B2 (en) * | 2008-02-18 | 2011-02-02 | ミツミ電機株式会社 | Broadcast receiving antenna device |
WO2010008258A2 (en) * | 2008-07-18 | 2010-01-21 | 주식회사 이엠따블유안테나 | Antenna with complex structure of periodic, grating arrangement of dielectric and magnetic substances |
WO2012153164A1 (en) | 2011-05-06 | 2012-11-15 | Time Reversal Communications | A device for receiving and/or emitting a wave, a system comprising the device, and use of such device |
FR2985096B1 (en) | 2011-12-21 | 2014-01-24 | Centre Nat Rech Scient | ELEMENTARY ANTENNA AND CORRESPONDING TWO-DIMENSIONAL NETWORK ANTENNA |
RU2562401C2 (en) | 2013-03-20 | 2015-09-10 | Александр Метталинович Тишин | Low-frequency antenna |
GB2512083B (en) * | 2013-03-19 | 2016-10-26 | Mettalinovich Tishin Alexandr | Antenna, array or system with a material structure surrounding at least part of an antenna element |
JP5938012B2 (en) * | 2013-06-21 | 2016-06-22 | 日本電信電話株式会社 | Reflector and antenna device |
JP7193805B2 (en) * | 2019-09-03 | 2022-12-21 | 日本電信電話株式会社 | antenna system |
WO2024135945A1 (en) * | 2022-12-20 | 2024-06-27 | Samsung Electronics Co., Ltd. | Antenna array with partially reflective depolarizing metasurface |
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US3331073A (en) * | 1965-07-01 | 1967-07-11 | Armstrong Cork Co | Antenna |
GB1555756A (en) * | 1975-03-18 | 1979-11-14 | Aerialite Aerials Ltd | Aerials |
EP0217426A3 (en) * | 1985-08-08 | 1988-07-13 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Microstrip antenna device |
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FR2801428B1 (en) * | 1999-11-18 | 2004-10-15 | Centre Nat Rech Scient | ANTENNA PROVIDED WITH AN ASSEMBLY OF FILTER MATERIALS |
-
1999
- 1999-11-18 FR FR9914521A patent/FR2801428B1/en not_active Expired - Fee Related
-
2000
- 2000-11-17 CN CN00802850.8A patent/CN1203579C/en not_active Expired - Fee Related
- 2000-11-17 AT AT03027264T patent/ATE336091T1/en not_active IP Right Cessation
- 2000-11-17 AT AT00981432T patent/ATE371964T1/en not_active IP Right Cessation
- 2000-11-17 EP EP00981432A patent/EP1145379B1/en not_active Expired - Lifetime
- 2000-11-17 CA CA002360432A patent/CA2360432C/en not_active Expired - Lifetime
- 2000-11-17 AU AU18684/01A patent/AU1868401A/en not_active Abandoned
- 2000-11-17 EP EP03027264A patent/EP1416586B1/en not_active Expired - Lifetime
- 2000-11-17 WO PCT/FR2000/003205 patent/WO2001037373A1/en active IP Right Grant
- 2000-11-17 CN CNB2003101131825A patent/CN100424930C/en not_active Expired - Fee Related
- 2000-11-17 JP JP2001537822A patent/JP4727884B2/en not_active Expired - Lifetime
- 2000-11-17 DE DE60030013T patent/DE60030013T2/en not_active Expired - Lifetime
- 2000-11-17 US US09/889,517 patent/US6549172B1/en not_active Expired - Lifetime
- 2000-11-17 DE DE60036195T patent/DE60036195T2/en not_active Expired - Lifetime
- 2000-11-17 ES ES00981432T patent/ES2292491T3/en not_active Expired - Lifetime
- 2000-11-17 ES ES03027264T patent/ES2269897T3/en not_active Expired - Lifetime
-
2004
- 2004-02-26 JP JP2004051839A patent/JP4714417B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
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See references of WO0137373A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8149180B2 (en) | 2007-03-29 | 2012-04-03 | Centre National De La Recherche Scientifique (C.N.R.S.) | Antenna with resonator having a filtering coating and system including such antenna |
Also Published As
Publication number | Publication date |
---|---|
CN100424930C (en) | 2008-10-08 |
JP4727884B2 (en) | 2011-07-20 |
AU1868401A (en) | 2001-05-30 |
EP1145379B1 (en) | 2007-08-29 |
DE60030013D1 (en) | 2006-09-21 |
EP1416586A1 (en) | 2004-05-06 |
CA2360432C (en) | 2008-10-07 |
ES2269897T3 (en) | 2007-04-01 |
ES2292491T3 (en) | 2008-03-16 |
CA2360432A1 (en) | 2001-05-25 |
DE60030013T2 (en) | 2007-02-22 |
FR2801428B1 (en) | 2004-10-15 |
JP4714417B2 (en) | 2011-06-29 |
DE60036195T2 (en) | 2008-05-15 |
CN1337078A (en) | 2002-02-20 |
ATE336091T1 (en) | 2006-09-15 |
EP1416586B1 (en) | 2006-08-09 |
JP2004159372A (en) | 2004-06-03 |
WO2001037373A1 (en) | 2001-05-25 |
CN1519988A (en) | 2004-08-11 |
US6549172B1 (en) | 2003-04-15 |
ATE371964T1 (en) | 2007-09-15 |
DE60036195D1 (en) | 2007-10-11 |
FR2801428A1 (en) | 2001-05-25 |
CN1203579C (en) | 2005-05-25 |
JP2003514476A (en) | 2003-04-15 |
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